src/common/event.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/event.cpp
   3 // Purpose:     Event classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/app.h"
  29     #include "wx/list.h"
  30
  31     #if wxUSE_GUI
  32         #include "wx/control.h"
  33         #include "wx/utils.h"
  34         #include "wx/dc.h"
  35         #include "wx/textctrl.h"
  36     #endif // wxUSE_GUI
  37 #endif
  38
  39 #include "wx/event.h"
  40 #include "wx/module.h"
  41
  42 #if wxUSE_GUI
  43     #include "wx/validate.h"
  44 #if wxUSE_STOPWATCH
  45     #include "wx/stopwatch.h"
  46 #endif
  47 #endif // wxUSE_GUI
  48
  49 // ----------------------------------------------------------------------------
  50 // wxWin macros
  51 // ----------------------------------------------------------------------------
  52
  53 #if wxUSE_BASE
  54     IMPLEMENT_DYNAMIC_CLASS(wxEvtHandler, wxObject)
  55     IMPLEMENT_ABSTRACT_CLASS(wxEvent, wxObject)
  56 #endif // wxUSE_BASE
  57
  58 #if wxUSE_GUI
  59     IMPLEMENT_DYNAMIC_CLASS(wxIdleEvent, wxEvent)
  60     IMPLEMENT_DYNAMIC_CLASS(wxCommandEvent, wxEvent)
  61     IMPLEMENT_DYNAMIC_CLASS(wxNotifyEvent, wxCommandEvent)
  62     IMPLEMENT_DYNAMIC_CLASS(wxScrollEvent, wxCommandEvent)
  63     IMPLEMENT_DYNAMIC_CLASS(wxScrollWinEvent, wxEvent)
  64     IMPLEMENT_DYNAMIC_CLASS(wxMouseEvent, wxEvent)
  65     IMPLEMENT_DYNAMIC_CLASS(wxKeyEvent, wxEvent)
  66     IMPLEMENT_DYNAMIC_CLASS(wxSizeEvent, wxEvent)
  67     IMPLEMENT_DYNAMIC_CLASS(wxPaintEvent, wxEvent)
  68     IMPLEMENT_DYNAMIC_CLASS(wxNcPaintEvent, wxEvent)
  69     IMPLEMENT_DYNAMIC_CLASS(wxEraseEvent, wxEvent)
  70     IMPLEMENT_DYNAMIC_CLASS(wxMoveEvent, wxEvent)
  71     IMPLEMENT_DYNAMIC_CLASS(wxFocusEvent, wxEvent)
  72     IMPLEMENT_DYNAMIC_CLASS(wxChildFocusEvent, wxCommandEvent)
  73     IMPLEMENT_DYNAMIC_CLASS(wxCloseEvent, wxEvent)
  74     IMPLEMENT_DYNAMIC_CLASS(wxShowEvent, wxEvent)
  75     IMPLEMENT_DYNAMIC_CLASS(wxMaximizeEvent, wxEvent)
  76     IMPLEMENT_DYNAMIC_CLASS(wxIconizeEvent, wxEvent)
  77     IMPLEMENT_DYNAMIC_CLASS(wxMenuEvent, wxEvent)
  78     IMPLEMENT_DYNAMIC_CLASS(wxJoystickEvent, wxEvent)
  79     IMPLEMENT_DYNAMIC_CLASS(wxDropFilesEvent, wxEvent)
  80     IMPLEMENT_DYNAMIC_CLASS(wxActivateEvent, wxEvent)
  81     IMPLEMENT_DYNAMIC_CLASS(wxInitDialogEvent, wxEvent)
  82     IMPLEMENT_DYNAMIC_CLASS(wxSetCursorEvent, wxEvent)
  83     IMPLEMENT_DYNAMIC_CLASS(wxSysColourChangedEvent, wxEvent)
  84     IMPLEMENT_DYNAMIC_CLASS(wxDisplayChangedEvent, wxEvent)
  85     IMPLEMENT_DYNAMIC_CLASS(wxUpdateUIEvent, wxCommandEvent)
  86     IMPLEMENT_DYNAMIC_CLASS(wxNavigationKeyEvent, wxEvent)
  87     IMPLEMENT_DYNAMIC_CLASS(wxPaletteChangedEvent, wxEvent)
  88     IMPLEMENT_DYNAMIC_CLASS(wxQueryNewPaletteEvent, wxEvent)
  89     IMPLEMENT_DYNAMIC_CLASS(wxWindowCreateEvent, wxEvent)
  90     IMPLEMENT_DYNAMIC_CLASS(wxWindowDestroyEvent, wxEvent)
  91     IMPLEMENT_DYNAMIC_CLASS(wxHelpEvent, wxCommandEvent)
  92     IMPLEMENT_DYNAMIC_CLASS(wxContextMenuEvent, wxCommandEvent)
  93     IMPLEMENT_DYNAMIC_CLASS(wxMouseCaptureChangedEvent, wxEvent)
  94 #endif // wxUSE_GUI
  95
  96 #if wxUSE_BASE
  97
  98 const wxEventTable *wxEvtHandler::GetEventTable() const
  99     { return &wxEvtHandler::sm_eventTable; }
 100
 101 const wxEventTable wxEvtHandler::sm_eventTable =
 102     { (const wxEventTable *)NULL, &wxEvtHandler::sm_eventTableEntries[0] };
 103
 104 wxEventHashTable &wxEvtHandler::GetEventHashTable() const
 105     { return wxEvtHandler::sm_eventHashTable; }
 106
 107 wxEventHashTable wxEvtHandler::sm_eventHashTable(wxEvtHandler::sm_eventTable);
 108
 109 const wxEventTableEntry wxEvtHandler::sm_eventTableEntries[] =
 110     { DECLARE_EVENT_TABLE_ENTRY(wxEVT_NULL, 0, 0, (wxObjectEventFunction)NULL, NULL) };
 111
 112
 113 #ifdef __WXDEBUG__
 114 // Clear up event hash table contents or we can get problems
 115 // when C++ is cleaning up the static object
 116 class wxEventTableEntryModule: public wxModule
 117 {
 118 DECLARE_DYNAMIC_CLASS(wxEventTableEntryModule)
 119 public:
 120     wxEventTableEntryModule() {}
 121     bool OnInit() { return true; }
 122     void OnExit()
 123     {
 124         wxEventHashTable::ClearAll();
 125     }
 126 };
 127 IMPLEMENT_DYNAMIC_CLASS(wxEventTableEntryModule, wxModule)
 128 #endif
 129
 130 // ----------------------------------------------------------------------------
 131 // global variables
 132 // ----------------------------------------------------------------------------
 133
 134 // To put pending event handlers
 135 wxList *wxPendingEvents = (wxList *)NULL;
 136
 137 #if wxUSE_THREADS
 138     // protects wxPendingEvents list
 139     wxCriticalSection *wxPendingEventsLocker = (wxCriticalSection *)NULL;
 140 #endif
 141
 142 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 143
 144 // common event types are defined here, other event types are defined by the
 145 // components which use them
 146
 147 const wxEventType wxEVT_FIRST = 10000;
 148 const wxEventType wxEVT_USER_FIRST = wxEVT_FIRST + 2000;
 149
 150 DEFINE_EVENT_TYPE(wxEVT_NULL)
 151 DEFINE_EVENT_TYPE(wxEVT_IDLE)
 152 DEFINE_EVENT_TYPE(wxEVT_SOCKET)
 153
 154 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 155
 156 #endif // wxUSE_BASE
 157
 158 #if wxUSE_GUI
 159
 160 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
 161
 162 DEFINE_EVENT_TYPE(wxEVT_COMMAND_BUTTON_CLICKED)
 163 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKBOX_CLICKED)
 164 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHOICE_SELECTED)
 165 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_SELECTED)
 166 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LISTBOX_DOUBLECLICKED)
 167 DEFINE_EVENT_TYPE(wxEVT_COMMAND_CHECKLISTBOX_TOGGLED)
 168 DEFINE_EVENT_TYPE(wxEVT_COMMAND_MENU_SELECTED)
 169 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SLIDER_UPDATED)
 170 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBOX_SELECTED)
 171 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RADIOBUTTON_SELECTED)
 172 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SCROLLBAR_UPDATED)
 173 DEFINE_EVENT_TYPE(wxEVT_COMMAND_VLBOX_SELECTED)
 174 DEFINE_EVENT_TYPE(wxEVT_COMMAND_COMBOBOX_SELECTED)
 175 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_RCLICKED)
 176 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TOOL_ENTER)
 177 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SPINCTRL_UPDATED)
 178
 179 // Sockets and timers send events, too
 180 DEFINE_EVENT_TYPE(wxEVT_TIMER)
 181
 182 // Mouse event types
 183 DEFINE_EVENT_TYPE(wxEVT_LEFT_DOWN)
 184 DEFINE_EVENT_TYPE(wxEVT_LEFT_UP)
 185 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DOWN)
 186 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_UP)
 187 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DOWN)
 188 DEFINE_EVENT_TYPE(wxEVT_RIGHT_UP)
 189 DEFINE_EVENT_TYPE(wxEVT_MOTION)
 190 DEFINE_EVENT_TYPE(wxEVT_ENTER_WINDOW)
 191 DEFINE_EVENT_TYPE(wxEVT_LEAVE_WINDOW)
 192 DEFINE_EVENT_TYPE(wxEVT_LEFT_DCLICK)
 193 DEFINE_EVENT_TYPE(wxEVT_MIDDLE_DCLICK)
 194 DEFINE_EVENT_TYPE(wxEVT_RIGHT_DCLICK)
 195 DEFINE_EVENT_TYPE(wxEVT_SET_FOCUS)
 196 DEFINE_EVENT_TYPE(wxEVT_KILL_FOCUS)
 197 DEFINE_EVENT_TYPE(wxEVT_CHILD_FOCUS)
 198 DEFINE_EVENT_TYPE(wxEVT_MOUSEWHEEL)
 199
 200 // Non-client mouse events
 201 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DOWN)
 202 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_UP)
 203 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DOWN)
 204 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_UP)
 205 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DOWN)
 206 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_UP)
 207 DEFINE_EVENT_TYPE(wxEVT_NC_MOTION)
 208 DEFINE_EVENT_TYPE(wxEVT_NC_ENTER_WINDOW)
 209 DEFINE_EVENT_TYPE(wxEVT_NC_LEAVE_WINDOW)
 210 DEFINE_EVENT_TYPE(wxEVT_NC_LEFT_DCLICK)
 211 DEFINE_EVENT_TYPE(wxEVT_NC_MIDDLE_DCLICK)
 212 DEFINE_EVENT_TYPE(wxEVT_NC_RIGHT_DCLICK)
 213
 214 // Character input event type
 215 DEFINE_EVENT_TYPE(wxEVT_CHAR)
 216 DEFINE_EVENT_TYPE(wxEVT_CHAR_HOOK)
 217 DEFINE_EVENT_TYPE(wxEVT_NAVIGATION_KEY)
 218 DEFINE_EVENT_TYPE(wxEVT_KEY_DOWN)
 219 DEFINE_EVENT_TYPE(wxEVT_KEY_UP)
 220 #if wxUSE_HOTKEY
 221 DEFINE_EVENT_TYPE(wxEVT_HOTKEY)
 222 #endif
 223
 224 // Set cursor event
 225 DEFINE_EVENT_TYPE(wxEVT_SET_CURSOR)
 226
 227 // wxScrollbar and wxSlider event identifiers
 228 DEFINE_EVENT_TYPE(wxEVT_SCROLL_TOP)
 229 DEFINE_EVENT_TYPE(wxEVT_SCROLL_BOTTOM)
 230 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEUP)
 231 DEFINE_EVENT_TYPE(wxEVT_SCROLL_LINEDOWN)
 232 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEUP)
 233 DEFINE_EVENT_TYPE(wxEVT_SCROLL_PAGEDOWN)
 234 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBTRACK)
 235 DEFINE_EVENT_TYPE(wxEVT_SCROLL_THUMBRELEASE)
 236 DEFINE_EVENT_TYPE(wxEVT_SCROLL_CHANGED)
 237
 238 // Scroll events from wxWindow
 239 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_TOP)
 240 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_BOTTOM)
 241 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEUP)
 242 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_LINEDOWN)
 243 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEUP)
 244 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_PAGEDOWN)
 245 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBTRACK)
 246 DEFINE_EVENT_TYPE(wxEVT_SCROLLWIN_THUMBRELEASE)
 247
 248 // System events
 249 DEFINE_EVENT_TYPE(wxEVT_SIZE)
 250 DEFINE_EVENT_TYPE(wxEVT_SIZING)
 251 DEFINE_EVENT_TYPE(wxEVT_MOVE)
 252 DEFINE_EVENT_TYPE(wxEVT_MOVING)
 253 DEFINE_EVENT_TYPE(wxEVT_CLOSE_WINDOW)
 254 DEFINE_EVENT_TYPE(wxEVT_END_SESSION)
 255 DEFINE_EVENT_TYPE(wxEVT_QUERY_END_SESSION)
 256 DEFINE_EVENT_TYPE(wxEVT_HIBERNATE)
 257 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE_APP)
 258 DEFINE_EVENT_TYPE(wxEVT_POWER)
 259 DEFINE_EVENT_TYPE(wxEVT_ACTIVATE)
 260 DEFINE_EVENT_TYPE(wxEVT_CREATE)
 261 DEFINE_EVENT_TYPE(wxEVT_DESTROY)
 262 DEFINE_EVENT_TYPE(wxEVT_SHOW)
 263 DEFINE_EVENT_TYPE(wxEVT_ICONIZE)
 264 DEFINE_EVENT_TYPE(wxEVT_MAXIMIZE)
 265 DEFINE_EVENT_TYPE(wxEVT_MOUSE_CAPTURE_CHANGED)
 266 DEFINE_EVENT_TYPE(wxEVT_PAINT)
 267 DEFINE_EVENT_TYPE(wxEVT_ERASE_BACKGROUND)
 268 DEFINE_EVENT_TYPE(wxEVT_NC_PAINT)
 269 DEFINE_EVENT_TYPE(wxEVT_PAINT_ICON)
 270 DEFINE_EVENT_TYPE(wxEVT_MENU_OPEN)
 271 DEFINE_EVENT_TYPE(wxEVT_MENU_CLOSE)
 272 DEFINE_EVENT_TYPE(wxEVT_MENU_HIGHLIGHT)
 273 DEFINE_EVENT_TYPE(wxEVT_CONTEXT_MENU)
 274 DEFINE_EVENT_TYPE(wxEVT_SYS_COLOUR_CHANGED)
 275 DEFINE_EVENT_TYPE(wxEVT_DISPLAY_CHANGED)
 276 DEFINE_EVENT_TYPE(wxEVT_SETTING_CHANGED)
 277 DEFINE_EVENT_TYPE(wxEVT_QUERY_NEW_PALETTE)
 278 DEFINE_EVENT_TYPE(wxEVT_PALETTE_CHANGED)
 279 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_DOWN)
 280 DEFINE_EVENT_TYPE(wxEVT_JOY_BUTTON_UP)
 281 DEFINE_EVENT_TYPE(wxEVT_JOY_MOVE)
 282 DEFINE_EVENT_TYPE(wxEVT_JOY_ZMOVE)
 283 DEFINE_EVENT_TYPE(wxEVT_DROP_FILES)
 284 DEFINE_EVENT_TYPE(wxEVT_DRAW_ITEM)
 285 DEFINE_EVENT_TYPE(wxEVT_MEASURE_ITEM)
 286 DEFINE_EVENT_TYPE(wxEVT_COMPARE_ITEM)
 287 DEFINE_EVENT_TYPE(wxEVT_INIT_DIALOG)
 288 DEFINE_EVENT_TYPE(wxEVT_UPDATE_UI)
 289
 290 // Generic command events
 291 // Note: a click is a higher-level event than button down/up
 292 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_CLICK)
 293 DEFINE_EVENT_TYPE(wxEVT_COMMAND_LEFT_DCLICK)
 294 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_CLICK)
 295 DEFINE_EVENT_TYPE(wxEVT_COMMAND_RIGHT_DCLICK)
 296 DEFINE_EVENT_TYPE(wxEVT_COMMAND_SET_FOCUS)
 297 DEFINE_EVENT_TYPE(wxEVT_COMMAND_KILL_FOCUS)
 298 DEFINE_EVENT_TYPE(wxEVT_COMMAND_ENTER)
 299
 300 // Help events
 301 DEFINE_EVENT_TYPE(wxEVT_HELP)
 302 DEFINE_EVENT_TYPE(wxEVT_DETAILED_HELP)
 303
 304 #endif // !WXWIN_COMPATIBILITY_EVENT_TYPES
 305
 306 #endif // wxUSE_GUI
 307
 308 #if wxUSE_BASE
 309
 310 // ============================================================================
 311 // implementation
 312 // ============================================================================
 313
 314 // ----------------------------------------------------------------------------
 315 // event initialization
 316 // ----------------------------------------------------------------------------
 317
 318 int wxNewEventType()
 319 {
 320     // MT-FIXME
 321     static int s_lastUsedEventType = wxEVT_FIRST;
 322
 323     return s_lastUsedEventType++;
 324 }
 325
 326 // ----------------------------------------------------------------------------
 327 // wxEvent
 328 // ----------------------------------------------------------------------------
 329
 330 /*
 331  * General wxWidgets events, covering
 332  * all interesting things that might happen (button clicking, resizing,
 333  * setting text in widgets, etc.).
 334  *
 335  * For each completely new event type, derive a new event class.
 336  *
 337  */
 338
 339 wxEvent::wxEvent(int theId, wxEventType commandType )
 340 {
 341     m_eventType = commandType;
 342     m_eventObject = (wxObject *) NULL;
 343     m_timeStamp = 0;
 344     m_id = theId;
 345     m_skipped = false;
 346     m_callbackUserData = (wxObject *) NULL;
 347     m_isCommandEvent = false;
 348     m_propagationLevel = wxEVENT_PROPAGATE_NONE;
 349 }
 350
 351 wxEvent::wxEvent(const wxEvent &src)
 352     : wxObject()
 353     , m_eventObject(src.m_eventObject)
 354     , m_eventType(src.m_eventType)
 355     , m_timeStamp(src.m_timeStamp)
 356     , m_id(src.m_id)
 357     , m_callbackUserData(src.m_callbackUserData)
 358     , m_propagationLevel(src.m_propagationLevel)
 359     , m_skipped(src.m_skipped)
 360     , m_isCommandEvent(src.m_isCommandEvent)
 361 {
 362 }
 363
 364 #endif // wxUSE_BASE
 365
 366 #if wxUSE_GUI
 367
 368 /*
 369  * Command events
 370  *
 371  */
 372
 373 #ifdef __VISUALC__
 374     // 'this' : used in base member initializer list (for m_commandString)
 375     #pragma warning(disable:4355)
 376 #endif
 377
 378 wxCommandEvent::wxCommandEvent(wxEventType commandType, int theId)
 379               : wxEvent(theId, commandType)
 380 #if WXWIN_COMPATIBILITY_2_4
 381               , m_commandString(this)
 382 #endif
 383 {
 384     m_clientData = (char *) NULL;
 385     m_clientObject = (wxClientData *) NULL;
 386     m_extraLong = 0;
 387     m_commandInt = 0;
 388     m_isCommandEvent = true;
 389
 390     // the command events are propagated upwards by default
 391     m_propagationLevel = wxEVENT_PROPAGATE_MAX;
 392 }
 393
 394 #ifdef __VISUALC__
 395     #pragma warning(default:4355)
 396 #endif
 397
 398 wxString wxCommandEvent::GetString() const
 399 {
 400     if(m_eventType != wxEVT_COMMAND_TEXT_UPDATED || !m_eventObject)
 401         return m_cmdString;
 402     else
 403     {
 404 #if wxUSE_TEXTCTRL
 405         wxTextCtrl *txt = wxDynamicCast(m_eventObject, wxTextCtrl);
 406         if(txt)
 407             return txt->GetValue();
 408         else
 409 #endif // wxUSE_TEXTCTRL
 410             return m_cmdString;
 411     }
 412 }
 413
 414 /*
 415  * UI update events
 416  */
 417
 418 #if wxUSE_LONGLONG
 419 wxLongLong wxUpdateUIEvent::sm_lastUpdate = 0;
 420 #endif
 421
 422 long wxUpdateUIEvent::sm_updateInterval = 0;
 423
 424 wxUpdateUIMode wxUpdateUIEvent::sm_updateMode = wxUPDATE_UI_PROCESS_ALL;
 425
 426 // Can we update?
 427 bool wxUpdateUIEvent::CanUpdate(wxWindowBase *win)
 428 {
 429     // Don't update if we've switched global updating off
 430     // and this window doesn't support updates.
 431     if (win &&
 432        (GetMode() == wxUPDATE_UI_PROCESS_SPECIFIED &&
 433        ((win->GetExtraStyle() & wxWS_EX_PROCESS_UI_UPDATES) == 0)))
 434         return false;
 435
 436     if (sm_updateInterval == -1)
 437         return false;
 438
 439     if (sm_updateInterval == 0)
 440         return true;
 441
 442 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 443     wxLongLong now = wxGetLocalTimeMillis();
 444     if (now > (sm_lastUpdate + sm_updateInterval))
 445     {
 446         return true;
 447     }
 448
 449     return false;
 450 #else
 451     // If we don't have wxStopWatch or wxLongLong, we
 452     // should err on the safe side and update now anyway.
 453     return true;
 454 #endif
 455 }
 456
 457 // Reset the update time to provide a delay until the next
 458 // time we should update
 459 void wxUpdateUIEvent::ResetUpdateTime()
 460 {
 461 #if wxUSE_STOPWATCH && wxUSE_LONGLONG
 462     if (sm_updateInterval > 0)
 463     {
 464         wxLongLong now = wxGetLocalTimeMillis();
 465         if (now > (sm_lastUpdate + sm_updateInterval))
 466         {
 467             sm_lastUpdate = now;
 468         }
 469     }
 470 #endif
 471 }
 472
 473 /*
 474  * Idle events
 475  */
 476
 477 wxIdleMode wxIdleEvent::sm_idleMode = wxIDLE_PROCESS_ALL;
 478
 479 // Can we send an idle event?
 480 bool wxIdleEvent::CanSend(wxWindow* win)
 481 {
 482     // Don't update if we've switched global updating off
 483     // and this window doesn't support updates.
 484     if (win &&
 485        (GetMode() == wxIDLE_PROCESS_SPECIFIED &&
 486        ((win->GetExtraStyle() & wxWS_EX_PROCESS_IDLE) == 0)))
 487         return false;
 488
 489     return true;
 490 }
 491
 492 /*
 493  * Scroll events
 494  */
 495
 496 wxScrollEvent::wxScrollEvent(wxEventType commandType,
 497                              int id,
 498                              int pos,
 499                              int orient)
 500     : wxCommandEvent(commandType, id)
 501 {
 502     m_extraLong = orient;
 503     m_commandInt = pos;
 504 }
 505
 506 /*
 507  * ScrollWin events
 508  */
 509
 510 wxScrollWinEvent::wxScrollWinEvent(wxEventType commandType,
 511                                    int pos,
 512                                    int orient)
 513 {
 514     m_eventType = commandType;
 515     m_extraLong = orient;
 516     m_commandInt = pos;
 517 }
 518
 519 /*
 520  * Mouse events
 521  *
 522  */
 523
 524 wxMouseEvent::wxMouseEvent(wxEventType commandType)
 525 {
 526     m_eventType = commandType;
 527     m_metaDown = false;
 528     m_altDown = false;
 529     m_controlDown = false;
 530     m_shiftDown = false;
 531     m_leftDown = false;
 532     m_rightDown = false;
 533     m_middleDown = false;
 534     m_x = 0;
 535     m_y = 0;
 536     m_wheelRotation = 0;
 537     m_wheelDelta = 0;
 538     m_linesPerAction = 0;
 539 }
 540
 541 void wxMouseEvent::Assign(const wxMouseEvent& event)
 542 {
 543     m_eventType = event.m_eventType;
 544
 545     m_x = event.m_x;
 546     m_y = event.m_y;
 547
 548     m_leftDown = event.m_leftDown;
 549     m_middleDown = event.m_middleDown;
 550     m_rightDown = event.m_rightDown;
 551
 552     m_controlDown = event.m_controlDown;
 553     m_shiftDown = event.m_shiftDown;
 554     m_altDown = event.m_altDown;
 555     m_metaDown = event.m_metaDown;
 556
 557     m_wheelRotation = event.m_wheelRotation;
 558     m_wheelDelta = event.m_wheelDelta;
 559     m_linesPerAction = event.m_linesPerAction;
 560 }
 561
 562 // return true if was a button dclick event
 563 bool wxMouseEvent::ButtonDClick(int but) const
 564 {
 565     switch (but)
 566     {
 567         default:
 568             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDClick"));
 569             // fall through
 570
 571         case wxMOUSE_BTN_ANY:
 572             return (LeftDClick() || MiddleDClick() || RightDClick());
 573
 574         case wxMOUSE_BTN_LEFT:
 575             return LeftDClick();
 576
 577         case wxMOUSE_BTN_MIDDLE:
 578             return MiddleDClick();
 579
 580         case wxMOUSE_BTN_RIGHT:
 581             return RightDClick();
 582     }
 583 }
 584
 585 // return true if was a button down event
 586 bool wxMouseEvent::ButtonDown(int but) const
 587 {
 588     switch (but)
 589     {
 590         default:
 591             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonDown"));
 592             // fall through
 593
 594         case wxMOUSE_BTN_ANY:
 595             return (LeftDown() || MiddleDown() || RightDown());
 596
 597         case wxMOUSE_BTN_LEFT:
 598             return LeftDown();
 599
 600         case wxMOUSE_BTN_MIDDLE:
 601             return MiddleDown();
 602
 603         case wxMOUSE_BTN_RIGHT:
 604             return RightDown();
 605     }
 606 }
 607
 608 // return true if was a button up event
 609 bool wxMouseEvent::ButtonUp(int but) const
 610 {
 611     switch (but)
 612     {
 613         default:
 614             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonUp"));
 615             // fall through
 616
 617         case wxMOUSE_BTN_ANY:
 618             return (LeftUp() || MiddleUp() || RightUp());
 619
 620         case wxMOUSE_BTN_LEFT:
 621             return LeftUp();
 622
 623         case wxMOUSE_BTN_MIDDLE:
 624             return MiddleUp();
 625
 626         case wxMOUSE_BTN_RIGHT:
 627             return RightUp();
 628     }
 629 }
 630
 631 // return true if the given button is currently changing state
 632 bool wxMouseEvent::Button(int but) const
 633 {
 634     switch (but)
 635     {
 636         default:
 637             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::Button"));
 638             // fall through
 639
 640         case wxMOUSE_BTN_ANY:
 641             return ButtonUp(wxMOUSE_BTN_ANY) ||
 642                     ButtonDown(wxMOUSE_BTN_ANY) ||
 643                         ButtonDClick(wxMOUSE_BTN_ANY);
 644
 645         case wxMOUSE_BTN_LEFT:
 646             return LeftDown() || LeftUp() || LeftDClick();
 647
 648         case wxMOUSE_BTN_MIDDLE:
 649             return MiddleDown() || MiddleUp() || MiddleDClick();
 650
 651         case wxMOUSE_BTN_RIGHT:
 652             return RightDown() || RightUp() || RightDClick();
 653     }
 654 }
 655
 656 bool wxMouseEvent::ButtonIsDown(int but) const
 657 {
 658     switch (but)
 659     {
 660         default:
 661             wxFAIL_MSG(wxT("invalid parameter in wxMouseEvent::ButtonIsDown"));
 662             // fall through
 663
 664         case wxMOUSE_BTN_ANY:
 665             return LeftIsDown() || MiddleIsDown() || RightIsDown();
 666
 667         case wxMOUSE_BTN_LEFT:
 668             return LeftIsDown();
 669
 670         case wxMOUSE_BTN_MIDDLE:
 671             return MiddleIsDown();
 672
 673         case wxMOUSE_BTN_RIGHT:
 674             return RightIsDown();
 675     }
 676 }
 677
 678 int wxMouseEvent::GetButton() const
 679 {
 680     for ( int i = 1; i <= 3; i++ )
 681     {
 682         if ( Button(i) )
 683         {
 684             return i;
 685         }
 686     }
 687
 688     return wxMOUSE_BTN_NONE;
 689 }
 690
 691 // Find the logical position of the event given the DC
 692 wxPoint wxMouseEvent::GetLogicalPosition(const wxDC& dc) const
 693 {
 694     wxPoint pt(dc.DeviceToLogicalX(m_x), dc.DeviceToLogicalY(m_y));
 695     return pt;
 696 }
 697
 698
 699 /*
 700  * Keyboard event
 701  *
 702  */
 703
 704 wxKeyEvent::wxKeyEvent(wxEventType type)
 705 {
 706     m_eventType = type;
 707     m_shiftDown = false;
 708     m_controlDown = false;
 709     m_metaDown = false;
 710     m_altDown = false;
 711     m_keyCode = 0;
 712     m_scanCode = 0;
 713 #if wxUSE_UNICODE
 714     m_uniChar = 0;
 715 #endif
 716 }
 717
 718 wxKeyEvent::wxKeyEvent(const wxKeyEvent& evt)
 719     : wxEvent(evt)
 720 {
 721     m_x = evt.m_x;
 722     m_y = evt.m_y;
 723
 724     m_keyCode = evt.m_keyCode;
 725
 726     m_controlDown = evt.m_controlDown;
 727     m_shiftDown = evt.m_shiftDown;
 728     m_altDown = evt.m_altDown;
 729     m_metaDown = evt.m_metaDown;
 730     m_scanCode = evt.m_scanCode;
 731     m_rawCode = evt.m_rawCode;
 732     m_rawFlags = evt.m_rawFlags;
 733
 734 #if wxUSE_UNICODE
 735     m_uniChar = evt.m_uniChar;
 736 #endif
 737 }
 738
 739 #if WXWIN_COMPATIBILITY_2_6
 740 long wxKeyEvent::KeyCode() const
 741 {
 742     return m_keyCode;
 743 }
 744 #endif // WXWIN_COMPATIBILITY_2_6
 745
 746 wxWindowCreateEvent::wxWindowCreateEvent(wxWindow *win)
 747 {
 748     SetEventType(wxEVT_CREATE);
 749     SetEventObject(win);
 750 }
 751
 752 wxWindowDestroyEvent::wxWindowDestroyEvent(wxWindow *win)
 753 {
 754     SetEventType(wxEVT_DESTROY);
 755     SetEventObject(win);
 756 }
 757
 758 wxChildFocusEvent::wxChildFocusEvent(wxWindow *win)
 759                  : wxCommandEvent(wxEVT_CHILD_FOCUS)
 760 {
 761     SetEventObject(win);
 762 }
 763
 764 #endif // wxUSE_GUI
 765
 766
 767 #if wxUSE_BASE
 768
 769 // ----------------------------------------------------------------------------
 770 // wxEventHashTable
 771 // ----------------------------------------------------------------------------
 772
 773 static const int EVENT_TYPE_TABLE_INIT_SIZE = 31; // Not too big not too small...
 774
 775 wxEventHashTable* wxEventHashTable::sm_first = NULL;
 776
 777 wxEventHashTable::wxEventHashTable(const wxEventTable &table)
 778                 : m_table(table),
 779                   m_rebuildHash(true)
 780 {
 781     AllocEventTypeTable(EVENT_TYPE_TABLE_INIT_SIZE);
 782
 783     m_next = sm_first;
 784     if (m_next)
 785         m_next->m_previous = this;
 786     sm_first = this;
 787 }
 788
 789 wxEventHashTable::~wxEventHashTable()
 790 {
 791     if (m_next)
 792         m_next->m_previous = m_previous;
 793     if (m_previous)
 794         m_previous->m_next = m_next;
 795     if (sm_first == this)
 796         sm_first = m_next;
 797
 798     Clear();
 799 }
 800
 801 void wxEventHashTable::Clear()
 802 {
 803     size_t i;
 804     for(i = 0; i < m_size; i++)
 805     {
 806         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 807         if (eTTnode)
 808         {
 809             delete eTTnode;
 810         }
 811     }
 812
 813     // Necessary in order to not invoke the
 814     // overloaded delete operator when statics are cleaned up
 815     if (m_eventTypeTable)
 816         delete[] m_eventTypeTable;
 817
 818     m_eventTypeTable = NULL;
 819     m_size = 0;
 820 }
 821
 822 // Clear all tables
 823 void wxEventHashTable::ClearAll()
 824 {
 825     wxEventHashTable* table = sm_first;
 826     while (table)
 827     {
 828         table->Clear();
 829         table = table->m_next;
 830     }
 831 }
 832
 833 bool wxEventHashTable::HandleEvent(wxEvent &event, wxEvtHandler *self)
 834 {
 835     if (m_rebuildHash)
 836     {
 837         InitHashTable();
 838         m_rebuildHash = false;
 839     }
 840
 841     if (!m_eventTypeTable)
 842         return false;
 843
 844     // Find all entries for the given event type.
 845     wxEventType eventType = event.GetEventType();
 846     const EventTypeTablePointer eTTnode = m_eventTypeTable[eventType % m_size];
 847     if (eTTnode && eTTnode->eventType == eventType)
 848     {
 849         // Now start the search for an event handler
 850         // that can handle an event with the given ID.
 851         const wxEventTableEntryPointerArray&
 852             eventEntryTable = eTTnode->eventEntryTable;
 853
 854         const size_t count = eventEntryTable.GetCount();
 855         for (size_t n = 0; n < count; n++)
 856         {
 857             if ( wxEvtHandler::
 858                     ProcessEventIfMatches(*eventEntryTable[n], self, event) )
 859             {
 860                 return true;
 861             }
 862         }
 863     }
 864
 865     return false;
 866 }
 867
 868 void wxEventHashTable::InitHashTable()
 869 {
 870     // Loop over the event tables and all its base tables.
 871     const wxEventTable *table = &m_table;
 872     while (table)
 873     {
 874         // Retrieve all valid event handler entries
 875         const wxEventTableEntry *entry = table->entries;
 876         while (entry->m_fn != 0)
 877         {
 878             // Add the event entry in the Hash.
 879             AddEntry(*entry);
 880
 881             entry++;
 882         }
 883
 884         table = table->baseTable;
 885     }
 886
 887     // Lets free some memory.
 888     size_t i;
 889     for(i = 0; i < m_size; i++)
 890     {
 891         EventTypeTablePointer  eTTnode = m_eventTypeTable[i];
 892         if (eTTnode)
 893         {
 894             eTTnode->eventEntryTable.Shrink();
 895         }
 896     }
 897 }
 898
 899 void wxEventHashTable::AddEntry(const wxEventTableEntry &entry)
 900 {
 901     // This might happen 'accidentally' as the app is exiting
 902     if (!m_eventTypeTable)
 903         return;
 904
 905     EventTypeTablePointer *peTTnode = &m_eventTypeTable[entry.m_eventType % m_size];
 906     EventTypeTablePointer  eTTnode = *peTTnode;
 907
 908     if (eTTnode)
 909     {
 910         if (eTTnode->eventType != entry.m_eventType)
 911         {
 912             // Resize the table!
 913             GrowEventTypeTable();
 914             // Try again to add it.
 915             AddEntry(entry);
 916             return;
 917         }
 918     }
 919     else
 920     {
 921         eTTnode = new EventTypeTable;
 922         eTTnode->eventType = entry.m_eventType;
 923         *peTTnode = eTTnode;
 924     }
 925
 926     // Fill all hash entries between entry.m_id and entry.m_lastId...
 927     eTTnode->eventEntryTable.Add(&entry);
 928 }
 929
 930 void wxEventHashTable::AllocEventTypeTable(size_t size)
 931 {
 932     m_eventTypeTable = new EventTypeTablePointer[size];
 933     memset((void *)m_eventTypeTable, 0, sizeof(EventTypeTablePointer)*size);
 934     m_size = size;
 935 }
 936
 937 void wxEventHashTable::GrowEventTypeTable()
 938 {
 939     size_t oldSize = m_size;
 940     EventTypeTablePointer *oldEventTypeTable = m_eventTypeTable;
 941
 942     // TODO: Search the most optimal grow sequence
 943     AllocEventTypeTable(/* GetNextPrime(oldSize) */oldSize*2+1);
 944
 945     for ( size_t i = 0; i < oldSize; /* */ )
 946     {
 947         EventTypeTablePointer  eTToldNode = oldEventTypeTable[i];
 948         if (eTToldNode)
 949         {
 950             EventTypeTablePointer *peTTnode = &m_eventTypeTable[eTToldNode->eventType % m_size];
 951             EventTypeTablePointer  eTTnode = *peTTnode;
 952
 953             // Check for collision, we don't want any.
 954             if (eTTnode)
 955             {
 956                 GrowEventTypeTable();
 957                 continue; // Don't increment the counter,
 958                           // as we still need to add this element.
 959             }
 960             else
 961             {
 962                 // Get the old value and put it in the new table.
 963                 *peTTnode = oldEventTypeTable[i];
 964             }
 965         }
 966
 967         i++;
 968     }
 969
 970     delete[] oldEventTypeTable;
 971 }
 972
 973
 974 // ----------------------------------------------------------------------------
 975 // wxEvtHandler
 976 // ----------------------------------------------------------------------------
 977
 978 /*
 979  * Event handler
 980  */
 981
 982 wxEvtHandler::wxEvtHandler()
 983 {
 984     m_nextHandler = (wxEvtHandler *) NULL;
 985     m_previousHandler = (wxEvtHandler *) NULL;
 986     m_enabled = true;
 987     m_dynamicEvents = (wxList *) NULL;
 988     m_pendingEvents = (wxList *) NULL;
 989 #if wxUSE_THREADS
 990 #  if !defined(__VISAGECPP__)
 991     m_eventsLocker = new wxCriticalSection;
 992 #  endif
 993 #endif
 994     // no client data (yet)
 995     m_clientData = NULL;
 996     m_clientDataType = wxClientData_None;
 997 }
 998
 999 wxEvtHandler::~wxEvtHandler()
1000 {
1001     // Takes itself out of the list of handlers
1002     if (m_previousHandler)
1003         m_previousHandler->m_nextHandler = m_nextHandler;
1004
1005     if (m_nextHandler)
1006         m_nextHandler->m_previousHandler = m_previousHandler;
1007
1008     if (m_dynamicEvents)
1009     {
1010         wxList::iterator it = m_dynamicEvents->begin(),
1011                          en = m_dynamicEvents->end();
1012         for (;it != en; ++it)
1013         {
1014 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1015             wxEventTableEntry *entry = (wxEventTableEntry*)*it;
1016 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1017             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)*it;
1018 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1019
1020             if (entry->m_callbackUserData)
1021                 delete entry->m_callbackUserData;
1022             delete entry;
1023         }
1024         delete m_dynamicEvents;
1025     };
1026
1027     if (m_pendingEvents)
1028         m_pendingEvents->DeleteContents(true);
1029     delete m_pendingEvents;
1030
1031 #if wxUSE_THREADS
1032 #  if !defined(__VISAGECPP__)
1033     delete m_eventsLocker;
1034 #  endif
1035
1036     // Remove us from wxPendingEvents if necessary.
1037     if(wxPendingEventsLocker)
1038         wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1039     if ( wxPendingEvents )
1040     {
1041         // Delete all occurences of this from the list of pending events
1042         while (wxPendingEvents->DeleteObject(this)) { } // Do nothing
1043     }
1044     if(wxPendingEventsLocker)
1045         wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1046 #endif
1047
1048     // we only delete object data, not untyped
1049     if ( m_clientDataType == wxClientData_Object )
1050         delete m_clientObject;
1051 }
1052
1053 #if wxUSE_THREADS
1054
1055 bool wxEvtHandler::ProcessThreadEvent(wxEvent& event)
1056 {
1057     // check that we are really in a child thread
1058     wxASSERT_MSG( !wxThread::IsMain(),
1059                   wxT("use ProcessEvent() in main thread") );
1060
1061     AddPendingEvent(event);
1062
1063     return true;
1064 }
1065
1066 void wxEvtHandler::ClearEventLocker()
1067 {
1068 #if !defined(__VISAGECPP__)
1069     delete m_eventsLocker;
1070     m_eventsLocker = NULL;
1071 #endif
1072 }
1073
1074 #endif // wxUSE_THREADS
1075
1076 void wxEvtHandler::AddPendingEvent(wxEvent& event)
1077 {
1078     // 1) Add event to list of pending events of this event handler
1079
1080     wxEvent *eventCopy = event.Clone();
1081
1082     // we must be able to copy the events here so the event class must
1083     // implement Clone() properly instead of just providing a NULL stab for it
1084     wxCHECK_RET( eventCopy,
1085                  _T("events of this type aren't supposed to be posted") );
1086
1087     wxENTER_CRIT_SECT( Lock() );
1088
1089     if ( !m_pendingEvents )
1090       m_pendingEvents = new wxList;
1091
1092     m_pendingEvents->Append(eventCopy);
1093
1094     wxLEAVE_CRIT_SECT( Lock() );
1095
1096     // 2) Add this event handler to list of event handlers that
1097     //    have pending events.
1098
1099     wxENTER_CRIT_SECT(*wxPendingEventsLocker);
1100
1101     if ( !wxPendingEvents )
1102         wxPendingEvents = new wxList;
1103     wxPendingEvents->Append(this);
1104
1105     wxLEAVE_CRIT_SECT(*wxPendingEventsLocker);
1106
1107     // 3) Inform the system that new pending events are somewhere,
1108     //    and that these should be processed in idle time.
1109     wxWakeUpIdle();
1110 }
1111
1112 void wxEvtHandler::ProcessPendingEvents()
1113 {
1114     // this method is only called by wxApp if this handler does have pending
1115     // events
1116     wxCHECK_RET( m_pendingEvents,
1117                  wxT("Please call wxApp::ProcessPendingEvents() instead") );
1118
1119     wxENTER_CRIT_SECT( Lock() );
1120
1121     // we leave the loop once we have processed all events that were present at
1122     // the start of ProcessPendingEvents because otherwise we could get into
1123     // infinite loop if the pending event handler execution resulted in another
1124     // event being posted
1125     size_t n = m_pendingEvents->size();
1126     for ( wxList::compatibility_iterator node = m_pendingEvents->GetFirst();
1127           node;
1128           node = m_pendingEvents->GetFirst() )
1129     {
1130         wxEvent *event = (wxEvent *)node->GetData();
1131
1132         // It's importan we remove event from list before processing it.
1133         // Else a nested event loop, for example from a modal dialog, might
1134         // process the same event again.
1135         m_pendingEvents->Erase(node);
1136
1137         wxLEAVE_CRIT_SECT( Lock() );
1138
1139         ProcessEvent(*event);
1140         delete event;
1141
1142         wxENTER_CRIT_SECT( Lock() );
1143
1144         if ( --n == 0 )
1145             break;
1146     }
1147
1148     wxLEAVE_CRIT_SECT( Lock() );
1149 }
1150
1151 /*
1152  * Event table stuff
1153  */
1154 /* static */ bool
1155 wxEvtHandler::ProcessEventIfMatches(const wxEventTableEntryBase& entry,
1156                                     wxEvtHandler *handler,
1157                                     wxEvent& event)
1158 {
1159     int tableId1 = entry.m_id,
1160         tableId2 = entry.m_lastId;
1161
1162     // match only if the event type is the same and the id is either -1 in
1163     // the event table (meaning "any") or the event id matches the id
1164     // specified in the event table either exactly or by falling into
1165     // range between first and last
1166     if ((tableId1 == wxID_ANY) ||
1167         (tableId2 == wxID_ANY && tableId1 == event.GetId()) ||
1168         (tableId2 != wxID_ANY &&
1169          (event.GetId() >= tableId1 && event.GetId() <= tableId2)))
1170     {
1171         event.Skip(false);
1172         event.m_callbackUserData = entry.m_callbackUserData;
1173
1174 #if wxUSE_EXCEPTIONS
1175         if ( wxTheApp )
1176         {
1177             // call the handler via wxApp method which allows the user to catch
1178             // any exceptions which may be thrown by any handler in the program
1179             // in one place
1180             wxTheApp->HandleEvent(handler, (wxEventFunction)entry.m_fn, event);
1181         }
1182         else
1183 #endif // wxUSE_EXCEPTIONS
1184         {
1185             // no need for an extra virtual function call
1186             (handler->*((wxEventFunction) (entry.m_fn)))(event);
1187         }
1188
1189         if (!event.GetSkipped())
1190             return true;
1191     }
1192
1193     return false;
1194 }
1195
1196 bool wxEvtHandler::TryParent(wxEvent& event)
1197 {
1198     if ( wxTheApp && (this != wxTheApp) )
1199     {
1200         // Special case: don't pass wxEVT_IDLE to wxApp, since it'll always
1201         // swallow it. wxEVT_IDLE is sent explicitly to wxApp so it will be
1202         // processed appropriately via SearchEventTable.
1203         if ( event.GetEventType() != wxEVT_IDLE )
1204         {
1205             if ( wxTheApp->ProcessEvent(event) )
1206                 return true;
1207         }
1208     }
1209
1210     return false;
1211 }
1212
1213 bool wxEvtHandler::ProcessEvent(wxEvent& event)
1214 {
1215     // allow the application to hook into event processing
1216     if ( wxTheApp )
1217     {
1218         int rc = wxTheApp->FilterEvent(event);
1219         if ( rc != -1 )
1220         {
1221             wxASSERT_MSG( rc == 1 || rc == 0,
1222                           _T("unexpected wxApp::FilterEvent return value") );
1223
1224             return rc != 0;
1225         }
1226         //else: proceed normally
1227     }
1228
1229     // An event handler can be enabled or disabled
1230     if ( GetEvtHandlerEnabled() )
1231     {
1232         // if we have a validator, it has higher priority than our own event
1233         // table
1234         if ( TryValidator(event) )
1235             return true;
1236
1237         // Handle per-instance dynamic event tables first
1238         if ( m_dynamicEvents && SearchDynamicEventTable(event) )
1239             return true;
1240
1241         // Then static per-class event tables
1242         if ( GetEventHashTable().HandleEvent(event, this) )
1243             return true;
1244     }
1245
1246     // Try going down the event handler chain
1247     if ( GetNextHandler() )
1248     {
1249         if ( GetNextHandler()->ProcessEvent(event) )
1250             return true;
1251     }
1252
1253     // Finally propagate the event upwards the window chain and/or to the
1254     // application object as necessary
1255     return TryParent(event);
1256 }
1257
1258
1259 bool wxEvtHandler::SearchEventTable(wxEventTable& table, wxEvent& event)
1260 {
1261     const wxEventType eventType = event.GetEventType();
1262     for ( int i = 0; table.entries[i].m_fn != 0; i++ )
1263     {
1264         const wxEventTableEntry& entry = table.entries[i];
1265         if ( eventType == entry.m_eventType )
1266         {
1267             if ( ProcessEventIfMatches(entry, this, event) )
1268                 return true;
1269         }
1270     }
1271
1272     return false;
1273 }
1274
1275 void wxEvtHandler::Connect( int id, int lastId,
1276                             int eventType,
1277                             wxObjectEventFunction func,
1278                             wxObject *userData,
1279                             wxEvtHandler* eventSink )
1280 {
1281 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1282     wxEventTableEntry *entry = new wxEventTableEntry;
1283     entry->m_eventType = eventType;
1284     entry->m_id = id;
1285     entry->m_lastId = lastId;
1286     entry->m_fn = func;
1287     entry->m_callbackUserData = userData;
1288 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1289     wxDynamicEventTableEntry *entry =
1290         new wxDynamicEventTableEntry(eventType, id, lastId, func, userData, eventSink);
1291 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1292
1293     if (!m_dynamicEvents)
1294         m_dynamicEvents = new wxList;
1295
1296     // Insert at the front of the list so most recent additions are found first
1297     m_dynamicEvents->Insert( (wxObject*) entry );
1298 }
1299
1300 bool wxEvtHandler::Disconnect( int id, int lastId, wxEventType eventType,
1301                   wxObjectEventFunction func,
1302                   wxObject *userData,
1303                   wxEvtHandler* eventSink )
1304 {
1305     if (!m_dynamicEvents)
1306         return false;
1307
1308     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1309     while (node)
1310     {
1311 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1312             wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1313 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1314             wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1315 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1316
1317         if ((entry->m_id == id) &&
1318             ((entry->m_lastId == lastId) || (lastId == wxID_ANY)) &&
1319             ((entry->m_eventType == eventType) || (eventType == wxEVT_NULL)) &&
1320             ((entry->m_fn == func) || (func == (wxObjectEventFunction)NULL)) &&
1321             ((entry->m_eventSink == eventSink) || (eventSink == (wxEvtHandler*)NULL)) &&
1322             ((entry->m_callbackUserData == userData) || (userData == (wxObject*)NULL)))
1323         {
1324             if (entry->m_callbackUserData)
1325                 delete entry->m_callbackUserData;
1326             m_dynamicEvents->Erase( node );
1327             delete entry;
1328             return true;
1329         }
1330         node = node->GetNext();
1331     }
1332     return false;
1333 }
1334
1335 bool wxEvtHandler::SearchDynamicEventTable( wxEvent& event )
1336 {
1337     wxCHECK_MSG( m_dynamicEvents, false,
1338                  wxT("caller should check that we have dynamic events") );
1339
1340     wxList::compatibility_iterator node = m_dynamicEvents->GetFirst();
1341     while (node)
1342     {
1343 #if WXWIN_COMPATIBILITY_EVENT_TYPES
1344         wxEventTableEntry *entry = (wxEventTableEntry*)node->GetData();
1345 #else // !WXWIN_COMPATIBILITY_EVENT_TYPES
1346         wxDynamicEventTableEntry *entry = (wxDynamicEventTableEntry*)node->GetData();
1347 #endif // WXWIN_COMPATIBILITY_EVENT_TYPES/!WXWIN_COMPATIBILITY_EVENT_TYPES
1348
1349         // get next node before (maybe) calling the event handler as it could
1350         // call Disconnect() invalidating the current node
1351         node = node->GetNext();
1352
1353         if ((event.GetEventType() == entry->m_eventType) && (entry->m_fn != 0))
1354         {
1355             wxEvtHandler *handler =
1356 #if !WXWIN_COMPATIBILITY_EVENT_TYPES
1357                                     entry->m_eventSink ? entry->m_eventSink
1358                                                        :
1359 #endif
1360                                                          this;
1361
1362             if ( ProcessEventIfMatches(*entry, handler, event) )
1363             {
1364                 return true;
1365             }
1366         }
1367     }
1368
1369     return false;
1370 }
1371
1372 void wxEvtHandler::DoSetClientObject( wxClientData *data )
1373 {
1374     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1375                   wxT("can't have both object and void client data") );
1376
1377     if ( m_clientObject )
1378         delete m_clientObject;
1379
1380     m_clientObject = data;
1381     m_clientDataType = wxClientData_Object;
1382 }
1383
1384 wxClientData *wxEvtHandler::DoGetClientObject() const
1385 {
1386     // it's not an error to call GetClientObject() on a window which doesn't
1387     // have client data at all - NULL will be returned
1388     wxASSERT_MSG( m_clientDataType != wxClientData_Void,
1389                   wxT("this window doesn't have object client data") );
1390
1391     return m_clientObject;
1392 }
1393
1394 void wxEvtHandler::DoSetClientData( void *data )
1395 {
1396     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1397                   wxT("can't have both object and void client data") );
1398
1399     m_clientData = data;
1400     m_clientDataType = wxClientData_Void;
1401 }
1402
1403 void *wxEvtHandler::DoGetClientData() const
1404 {
1405     // it's not an error to call GetClientData() on a window which doesn't have
1406     // client data at all - NULL will be returned
1407     wxASSERT_MSG( m_clientDataType != wxClientData_Object,
1408                   wxT("this window doesn't have void client data") );
1409
1410     return m_clientData;
1411 }
1412
1413 #endif // wxUSE_BASE
1414
1415 #if wxUSE_GUI
1416
1417 // Find a window with the focus, that is also a descendant of the given window.
1418 // This is used to determine the window to initially send commands to.
1419 wxWindow* wxFindFocusDescendant(wxWindow* ancestor)
1420 {
1421     // Process events starting with the window with the focus, if any.
1422     wxWindow* focusWin = wxWindow::FindFocus();
1423     wxWindow* win = focusWin;
1424
1425     // Check if this is a descendant of this frame.
1426     // If not, win will be set to NULL.
1427     while (win)
1428     {
1429         if (win == ancestor)
1430             break;
1431         else
1432             win = win->GetParent();
1433     }
1434     if (win == (wxWindow*) NULL)
1435         focusWin = (wxWindow*) NULL;
1436
1437     return focusWin;
1438 }
1439
1440 #endif // wxUSE_GUI